Carrier 48/50PD05 Specifications

48/50PD05,06Single Package Displacement Ventilationor Single Zo ne Variable Air flow Rooftop UnitsElectric Cooling/Gas Heating with PURONR (R--410A)Re

10Fan StatusIf a Fan Status accessory was field installed, the unit must beconfigured for it by setting Configuration→UNIT→FN.SW tonormally open (1) o

100GENERAL NOTES FOR FAN PERFORMANCE DATA TABLES1. Static pressure losses from accessories and options(economizer, etc.) must be added to external sta

101APPENDIX D -- ADDITIONAL STAR T--UP DATATable 60 – Air Quantity Limits (50PD Units)UNIT50PDCOOLING (cfm)HEATING (cfm)OPTIONAL ELECTRIC HEAT051200 2

102CONTROL SET POINT AND CONFIGURATION LOGModel Number: _____________________________Serial Number: ______________________________Date: ______________

103Table 65 — MODE - CONFIGURATION (cont)ITEM EXPA NSION RANGE UNITS DEFAULTCCNTABLE/SUB--- TABLECCN POINT ENTRYHEAT Heating Configuration HEAT_CFGHT.

104Table 65 — MODE - CONFIGURATION (cont)ITEM EXPA NSION RANGE UNITS DEFAULTCCNTABLE/SUB--- TABLECCN POINT ENTRYAIR.Q Air Quality Config. IAQ_CFGIA.CF

105Table 65 — MODE - CONFIGURATION (cont)ITEM EXPA NSION RANGE UNITS DEFAULTCCNTABLE/SUB--- TABLECCN POINT ENTRY(GENERIC = CCN only) GENERICSPOINT 01

106UNIT START-UP CHECKLISTMODEL NO.:DATE: ______________SERIAL NO: _____________________________________TECHNICIAN: __________________________________

107Copyright 2009 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Printed in U.S.A. Edition Date: 6/09Manufacturer reserves the right to c

11Table 4 – Setting an Occupied Time Schedule - Weekdays Only for 7:30 to 22:30DISPLAYMENUSUB--SUBMODEKEYPADENTRYITEM DISPLAY ITEM EXPANSION COMMENTTI

12SER VICE TESTThe Service Test function can be used to verify proper operation ofcompressors, heating stages, indoor fan, outdoor fans, powerexhaust

13Fire ShutdownThe fire shutdown input is provided for unit shutdown in responseto a fire alarm or smoke detector. The Fire Shutdown Switchconfigurati

14RH Sensor On OAQ Input (RH.S)This configuration identifies if a space relative humidity sensor isinstalled on the outdoor air quality (OAQ) input. A

15When the space sensor has a setpoint slider adjustment, the cooland heat setpoints (occupied) can be offset by sliding the bar fromone side to the o

16When the unit is in cooling or unoccupied free cooling mode, thesupply fan will modulate between the configured Supply FanMaximum Speed (Configurati

17 Time OCSP OCSP - 0.5 F OCSP + FS.CD Cooling Speed Demand Window - Unit Supply Fan Speed Modulates to Move Space Temperature along a Dened Curve to

18Table 6 – Fan Level Control of Outdoor FanFANLEVELFANSPEEDCONDITIONS TO TRANSITION TO NEXTLOWER LEVELCONDITIONS TO TRANSITION TO NEXTHIGHER LEVEL0 O

19When SAT.H = ENBL, the Supply Air Temperature (Temperatures→AIR.T→SAT) sensor reading is displayed at the ScrollingMarquee and the CCN tables during

2TROUBLESHOOTING 25...Complete Unit Stoppage 25...Restart Procedure 26...

20Economizer Actuator CommunicationThe economizer actuator used with the 48/50PD units is aMulti-- Function Technology (MFT) actuator. This allows the

21The shape of the Economizer Minimum Position vs. Fan Speedcurve is determined by the configuration parameters: Econ Min at25% Fan speed (Configurati

22IAQ (Analog Input)The ComfortLinkt control is configured for indoor air qualitysensors which provide 4 to 20 mA signal for 0 to 2000 ppm CO2.If the

23IAQ (Switch Input)Indoor air quality can also be measured using a switch input. Forthe purpose of specifying the type of switch input, low CO2levels

24Temperature Compensated Start LogicThe following conditions must be met for the algorithm to run:S Unit is in unoccupied state.S Next occupied time

25Loadshed Group Number (S.GRP)This corresponds to the loadshed supervisory devices that resideelsewhere on the CCN network and broadcast loadshed and

26Restart ProcedureBefore attempting to restart the machine, check the alarm list todetermine the cause of the shut down. If the shutdown alarm for ap

27Alert Code T092 -- Circuit A Suction Pressure TransducerFailureThis alert occurs when the board does not properly read thetransducer voltage. A circ

28Alert Code T17 9 -- Loss of Communication with theEconomizer Control BoardThis alert occurs when the MBB cannot communicate with theECB. Economizer

29Alert Code T414There are 6 different alerts under this one alert code. Pressing enterand esc on the marquee or navigator to expand the T414 alert wi

3FIRE, EXPLOSION HAZARDFailure to follow this warning could result in personalinjury, death and/or property damage.Improper installation, adjustment,

30Table 7 – ComfortLink™ Alarm CodesALARMOR ALERTNUMBERDESCRIPTIONACTION TAKEN BYCONTROLRESETMETHODPROBABLE CAUSET051Digital Compressor Control Board

31Table 8 – LEN and CCN Communication ResistancesDeviceBoard SerialNumber(LEN) Resistance between Pins/Connector(CCN) Resistance between Pins/Connecto

32Table 9 – Cooling Service AnalysisPROBLEM CAUSE REMEDYCompressor and Fan Will Not Start Power failure. Call power company.Fuse blown or circuit brea

33POWER LED (green) ⎯ indicates voltage is present at the24VAC power terminal. When the 2 minute anti--short cycle timeris active, the green LED will

34Table 10 – DSC Red LED Flash CodesLED FlashCodeDescription Action Takenby ControlResetMethodProbable Cause1FlashReserved for Future Use N/A N/A N/A2

35Table 11 – Economizer Service AnalysisPROBLEM POSSIBLE CAUSE REMEDYDamper Does Not Move. Indoor Fan is off. Check for proper VFD connections. Check

36Heating TroubleshootingUse the unit Scrolling Marquee display or a CCN device to viewthe heating status display and the heating diagnostic display (

37LEGENDIDM -- Induced-Draft MotorIGC -- Integrated Gas Unit ControllerNOTE: Thermostat Fan Switch in the “AUTO” position.C07014Fig. 9 -- IGC Service

38Table 13 – IGC Board LED Alarm CodesLEDFLASHCODEDESCRIPTIONACTION TAKEN BYCONTROLRESET METHOD PROBABLE CAUSEOn Normal Operation— — —Off Hardware Fai

39Thermistor TroubleshootingThe electronic control uses thermistors to sense temperatures usedto control operation of the unit. Resistan ces at variou

4Run StatusService TestTemperaturesPressuresSetpointsInputsOutputsConfigurationTime ClockOperating ModesAlarmsENTERESCMODEAlarm StatusTIMEEWTLWTSETP12

40Sensor TrimCorrective offsets can be applied to the space temperature and thesupply air temperature sensor readings. These corrections are set inthe

41Table 15 – Temperature (_F) vs Resistance/Voltage Drop Values forRAT, OAT, SAT, and SPT Thermistors (10K at 25_C Resistors)TEMP VOLTAGE RESISTANCE T

42Table 16 – Temperature (_F) vs. Resistance/Voltage Drop Values for SCT Sensors (5K at 25_C Resistors)TEMP(F)VOLT AGEDROP (V)RESISTANCE(Ohms)TEMP (F)

43Table 17 – Temperature vs Resistance Values for the DTT Thermistor(86K at 25_C Resistors)Degree C Degree F Resistance (k Ohms)--- 4 0 --- 4 0 2889.6

44Table 18 – Pressure (psig) vs. Voltage Drop Values for Suction Pressur e TransducersPRESSURE(psig)VOLT AGEDROP (V)PRESSURE(psig)VOLT AGEDROP (V)PRES

45C08582Fig. 13 -- 48PD Control Wiring Schematic48/50PD

46C08583Fig. 14 -- 50PD Control Wiring Schematic48/50PD

47C08584Fig. 15 -- 48/50PD Power Wiring Schematic and Legend48/50PD

48C08657Fig. 16 -- Typical Unit Component Arrangement48/50PD

49Main Base Board (MBB)See Fig. 17 and Table 19. The MBB is the center of theComfortLink control system. It contains the major portion of theoperating

5Table 2 – Scrolling Marquee Mode and Menu Display StructureRUNSTATUSSERVICETESTTEMPERATURES PRESSURES SETPOINTS INPUTS OUTPUTS CONFIGURA TIONTIMECLOC

50Table 19 – MBB ConnectionsDISPLAYNAMEPOINT DESCRIPTION SENSOR LOCATION TYPE OF I/OCONNECTIONPIN NUMBERINPUTSInput power from TRAN1 control box 24 VA

51Economizer Control B oard (ECB)The ECB controls the economizer actuator. (See Fig. 18 and Table20.) The control signal from the ECB uses either the

52Table 20 – ECB ConnectionsDISPLAYNAMEPOINT DESCRIPTION SENSORLOCATIONTYPE OF I/O CONNECTIONPIN NUMBERINPUTSInput power from MBB control box 24 VAC J

53Modulation Board (AUX1)The AUX1 board controls the compressor capacity and the indoorfan speed (See Fig. 19 and Table 21.) It outputs a 1 -- 5vdc an

54Digital Scroll Control Board (DSC)The DSC board controls the compressor’s capacity. (See Fig. 20and Table 22.) It receives a 1--5vdc signal from the

55Variable Frequency Drive (VFD)The VFD varies the frequency of the AC voltage supplied to theindoor fan. (See Fig. 21 and Table 23.) This causes the

56Integrated Gas Control (IGC) BoardThe IGC is provided on gas heat units. (See Fig. 22 and Table 24.)The IGC controls the direct spark ignition syste

57Low Voltage Terminal Strip(TB1)This circuit board provides a connection point between the majorcontrol boards and a majority of the field-installed

58Scrolling Marquee DisplayThis device is the keypad interface used to access rooftopinformation, read sensor values, and test the unit. (See Fig. 24.

59Space Temperature Sensor (T--58)The T--58 space temperature sensor (part no. 33ZCT58SPT) is afield-installed accessory. The T--58 sensor communicate

6Conventions Used in This ManualThe following conventions for discussing configuration points forthe local display (Scrolling Marquee or Navigator™ ac

60TO MAINBASE BOARDREDBLKREDBLKREDBLKSENSOR 1SENSOR 2SENSOR 3REDBLKSENSOR 6SENSOR 5REDBLKSENSOR 4REDBLKREDBLKREDBLKSENSOR 8SENSOR 7 SENSOR 91REDBLKTB1

61Carrier Accessory KitsThere are specific accessory kits sold for various field installedaccessories. These kits vary based on model, size, voltage,m

62UNIT OPERATION AND SAFETY HAZARDFailure to follow this warning could cause personalinjury, death and/or equipment damage.Puronr (R--410A) refrigeran

63UNIT RELIABILITY HAZARDFailure to follow this caution may result in reduced unitperformance.High velocity water from a pressure washer, garden hose,

64To inspect blower wheel, open heat section door. Using aflashlight, look into the flue exhaust duct to inspect. If cleaning isrequired, remove motor

657. Realign fan and motor pulleys:a. Loosen fan pulley setscrews.b. Slide fan pulley along fan shaft.c. Make angular alignment by loosening motor fro

66Condenser-Fan Adjustment1. Shut off unit power supply.2. Remove condenser-fan assembly (grille, motor, motorcover, and fan) and loosen fan hub setsc

67To Use the Cooling Charging ChartUse the temperature and pressure readings, and find theintersection point on the cooling charging chart. If interse

688. Once desired pressure is established, set unit setting for nocall for heat, turn off main gas valve, removepressure-measuring device, and replace

69Filter DrierReplace filter drier whenever refrigerant system is exposed toatmosphere. Only use factory specified liquid-line filter driers withworki

7On 3-phase units, it is important to be certain the compressors arerotating in the proper direction. To determine whether or notcompressors are rotat

70APPENDIX A - LOCAL DISPLAY AND CCN TABLESTable27–MODE- RUN STATUSITEM EXP ANSION RANGE UNITSCCNTABLE/SUB --- TABLECCN POINTCCN WRITESTATUSRUN STATUS

71APPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)Table 27 — MODE - RUN STATUS (cont)ITEM EXPANSION RANGE UNITSCCNTABLE/SUB--- TABLECCN POINTCCN WRITE

72APPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)Table 28 – MODE - SERVICE TESTITEM EXPANSION RANGE UNITS DEFAULT CCN TABLE/SUB --- TABLE CCN POINTCC

73APPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)Table 31 – MODE - SET POINTSITEM EXPANSION RANGE UNITS DEFAULT CCN TABLE/SUB--- TABLE CCN POINTSETPO

74APPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)Table 34 – MODE - CONFIGURATIONITEM EXPA NSION RANGE UNITS DEFAULTCCNTABLE/SUB--- TABLECCN POINTPAGE

75APPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)Table 34 — MODE - CONFIGURATION (cont)ITEM EXPA NSION RANGE UNITS DEFAULTCCNTABLE/SUB--- TABLECCN PO

76APPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)Table 34 — MODE - CONFIGURATION (cont)ITEM EXPA NSION RANGE UNITS DEFAULTCCNTABLE/SUB--- TABLECCN PO

77APPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)Table 34 — MODE - CONFIGURATION (cont)ITEM EXPA NSION RANGE UNITS DEFAULTCCNTABLE/SUB--- TABLECCN PO

78APPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)Table 35 – MODE - TIME CLOCKITEM EXPANSION RANGE UNITS DEFAULTCCNTABLE/SUB--- TABLECCN POINTTIME CLO

79APPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)Table 3 7 – MODE - OPERATING MODESITEM EXPANSION RANGE UNITSCCNTABLE/SUB--- TABLECCN POINTCCNWRITEST

8Gas Heat (48PD Only)Inspect the gas heat section of the unit. Verify the number ofburners match the number of heat exchanger openings and theburner a

80APPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)Table 37 — MODE - OPERATING MODES (cont)ITEM EXPANSION RANGE UNITSCCNTABLE/SUB--- TABLECCN POINTCCNW

81APPENDIX A - LOCAL DISPLAY AND CCN TABLES (CONT)Table 37 — MODE - OPERATING MODES (cont)ITEM EXPANSION RANGE UNITSCCNTABLE/SUB--- TABLECCN POINTCCNW

82APPENDIX B - VFD INFORMATIONOn 48/50PD units, the supply fan speed is controlled by a 3-- phaseVFD. The VFD is located in the supply fan section beh

83APPENDIX B - VFD INFORMATION (CONT)Table 40 – VFD CONFIGURATIONSAPPLICATION CRITICAL DRIVE PARAMETERS FOR ABB ACH 550 DRIVESParameter GroupParameter

84APPENDIX B - VFD INFORMATION (CONT)VFD OperationThe VFD keypad is shown in Fig. 42. The function of SOFTKEYS 1 and 2 change depending on what is dis

85APPENDIX B -- VFD INFORMATION (CONT)To adjust the speed in HAND mode, press the UP or DOWNbuttons (the reference changes immediately). The reference

86Download Application ParametersTo download application parameters only to the control panel fromthe VFD, perform the following procedure:1. Install

87HistoryFor reference, the last three fault codes are stored into parameters0401, 0412, 0413. For the most recent fault (identified byparameter 0401)

88APPENDIX B - VFD INFORMATION (CONT)Table41–FAULTCODESFAULTCODEFAULT NAME IN PANEL DESCRIPTION AND RECOMMENDED CORRECTIVE ACTION1OVERCURRENTOutput cu

89APPENDIX B - VFD INFORMATION (CONT)Table 41 — FAULT CODES (cont)FAULTCODEFAULT NAME IN PANEL DESCRIPTION AND RECOMMENDED CORRECTIVE ACTION1000PAR HZ

9Table 3 – Application Specific ConfigurationsITEM EXPANSION DEFAULT UNITSDISPLACEMENTVENTILATIONSINGLE ZONEVAVSASP Cool Supply Air Setpoint 65 dF 65

90APPENDIX B - VFD INFORMATION (CONT)Table 42 – ALARM CODESALARMCODEALARM NAMEIN PANELDESCRIPTION AND RECOMMENDED CORRECTIVE ACTION2001 --- Reserved20

91APPENDIX B - VFD INFORMATION (CONT)Main Fan ReplacementThe main cooling fan of the VFD has a life span of about 60,000operating hours at maximum rat

92APPENDIX C -- START--UP DATATable 44 – Fan Performance - 48PDD05 Vertical UnitsAIRFLOW(Cfm)AVAILABLEEXTERNALSTATICPRESSURE(in.wg)0.2 0.4 0.6 0.8 1.0

93Table 46 – Fan Performance - 48PDF05 Vertical UnitsAIRFLOW(Cfm)AVAILABLEEXTERNALSTATICPRESSURE(in.wg)0.2 0.4 0.6 0.8 1.0Rpm Bhp Rpm Bhp Rpm Bhp Rpm

94Table 48 – Fan Performance - 48PDE06 Vertical UnitsAIRFLOW(Cfm)AVAILABLEEXTERNALSTATICPRESSURE(in.wg)0.2 0.4 0.6 0.8 1.0Rpm Bhp Rpm Bhp Rpm Bhp Rpm

95Table 50 – Fan Performance - 48PDD05 Horizontal UnitsAIRFLOW(Cfm)AVAILABLEEXTERNALSTATICPRESSURE(in.wg)0.2 0.4 0.6 0.8 1.0Rpm Bhp Rpm Bhp Rpm Bhp Rp

96Table 52 – Fan Performance - 48PDF05 Horizontal UnitsAIRFLOW(Cfm)AVAILABLEEXTERNALSTATICPRESSURE(in.wg)0.2 0.4 0.6 0.8 1.0Rpm Bhp Rpm Bhp Rpm Bhp Rp

97Table 54 – Fan Performance - 48PDE06 Horizontal UnitsAIRFLOW(Cfm)AVAILABLEEXTERNALSTATICPRESSURE(in.wg)0.2 0.4 0.6 0.8 1.0Rpm Bhp Rpm Bhp Rpm Bhp Rp

98Table 56 – Fan Performance - 50PD05 Vertical UnitsAIRFLOW(Cfm)AVAILABLEEXTERNALSTATICPRESSURE(in.wg)0.2 0.4 0.6 0.8 1.0Rpm Bhp Rpm Bhp Rpm Bhp Rpm B

99Table 58 – Fan Performance - 50PD05 Horizontal UnitsAIRFLOW(Cfm)AVAILABLEEXTERNALSTATICPRESSURE(in.wg)0.2 0.4 0.6 0.8 1.0Rpm Bhp Rpm Bhp Rpm Bhp Rpm